Hello,
I recently installed gtk2hs on Windows (7). First of all, the installation
works really fine with the haskellwiki entry
http://www.haskell.org/haskellwiki/Gtk2Hs/Windows. :-)
Compilation and execution of gkt2hs-applications also works. However, I
cannot run the main function from the REPL because the cairo library cannot
be loaded. Thus, a compilation with "ghc --make" or "cabal build" +
"dist\build\project\project.exe" is required when I want to test my gtk2hs
application. It is easier to switch to the GHCi-REPL and type ":main". It
is not a huge deal but the "developer experience" is way better with the
latter approach (that I know from my Linux box). :)
After some googling I found the issue
http://hackage.haskell.org/trac/gtk2hs/ticket/1270 that probably fixes the
issue. GHCi just tries to load the wrong dll (in my case:
libcairo-script-interpreter-2.dll).
Changing the entry in %APPDATA%\ghc\i386-mingw32-7.4.1\cairo-0.12.3.1-.....conf
from
extra-ghci-libraries: libcairo-script-interpreter-2.dll
to
extra-ghci-libraries: libcairo-2
with an
ghc-pkg recache --user
fixes the problem. The bug report is still open and I think the described
solution of #1270 will remove the described issue for windows users. But I
don't know if the approach of #1270 is the way it should be done. Is there
a plan to fix this issue (and is help required)?
Best regards,
Wolfgang
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